86888647 has 2 divisors, whose sum is σ = 86888648. Its totient is φ = 86888646.

The previous prime is 86888639. The next prime is 86888719. The reversal of 86888647 is 74688868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86888647 - 2³ = 86888639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86888047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43444323 + 43444324.

It is an arithmetic number, because the mean of its divisors is an integer number (43444324).

Almost surely, 2^86888647 is an apocalyptic number.

86888647 is a deficient number, since it is larger than the sum of its proper divisors (1).

86888647 is an equidigital number, since it uses as much as digits as its factorization.

86888647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4128768, while the sum is 55.

The square root of 86888647 is about 9321.4079945038. The cubic root of 86888647 is about 442.9156353095.

The spelling of 86888647 in words is "eighty-six million, eight hundred eighty-eight thousand, six hundred forty-seven".